It's a '99 Merhow with factory installed Sierra living quarters.  It has a power inverter of some sort, and AquaH instant hot water heater, fridge, 2 burner stove, cowboy shower, wall plugs in the LQ area. 

I can succesfully light the stove, so I  know I have propane and it is coming back to the dressing room.  I can't get the fridge to turn on, with it on propane.  I set the switch to high cool (this is on the side of the trailer, where I light the pilot light, which is lit), but I can't tell anything is happening.  Is there an "on" button somewhere?  I also can't get the water heater to work.  Any ideas?

I thought the wall plugs would have power off the battery, but that doesn't seem to be the case?